EcologybioRxiv
Abiotic conditions shape spatial and temporal morphological variation in North American birds
C. Youngflesh, J. F. Saracco, R. B. Siegel, M. W. Tingley
The paper analyzes morphological changes in North American birds over time and space, finding that warmer temperatures correlate with smaller body sizes and increased wing length at higher elevations.
DOI 10.1038/s41559-022-01893-x